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| 1 | Technological advancements and promotion roles of Chang'e-3 lunar probe mission显示文摘The mission objective of Chang’e-3 lunar probe is to achieve our first soft-landing and roving exploration on celestial bodies beyond Earth.On the basis of analyzing technological characteristics in the probe development,key technology breakthroughs and technological promoting roles of Chang’e-3 are both described. | SUN ZeZhou JIA Yang ZHANG He | 2013 | Science China(Technological Sciences)2013，56，11： | 30 |
| 2 | Intermetallic phase formation and evolution during homogenization and solution in Al-Zn-Mg-Cu alloys显示文摘The effects of major alloy element contents of Zn,Mg,Cu in Al-Zn-Mg-Cu alloys on the formation and evolution of intermetallic phases during casting,homogenization and solution treatment have been investigated through using X-ray diffraction,scanning electron microscopy and differential scanning calorimetry.Experimental results showed that a relatively higher Zn content with lower Mg and Cu contents was beneficial to the formation of MgZn2phase instead of the Al2CuMg phase,which resulted in the unicity of the intermetallics in the Al matrix,and that the MgZn2phase was easier for diffusion and dissolution during homogenization and solution than the Al2CuMg phase.Additionally,the results of the first-principles calculations gave support for explaining the experimental phenomena.A larger absolute value of formation enthalpy and a smaller value of binding energy of the MgZn2phase,as compared with the Al2CuMg phase,give it priority to precipitate during casting and make it easier to re-dissolve during homogenization and solution treatment.What’s more,higher elastic constants with severe anisotropy of Young’s modulus make undissolved blocks of Al2CuMg phase act as crack initiation,which degrade the performance of the materials. | LI ChunMei CHEN ZhiQian ZENG SuMin CHENG NanPu CHEN TianXiao | 2013 | Science China(Technological Sciences)2013，56，11： | 10 |
| 3 | 铝合金中的溶质原子团簇及其强韧化显示文摘得益于先进表征技术的快速发展,已经可以初步实现在时间和空间上高精度、大范围地定量表征金属材料中的溶质原子团簇,这极大地促进了溶质原子团簇的深入研究。对于广泛应用的铝合金而言,溶质原子团簇不仅是作为时效析出的前驱体而得到重视,更成为了一种新型的强韧化手段,在强塑性匹配上显示出了一定的调控潜力和自由度。本文针对铝合金近年来的相关研究进展,从溶质原子团簇精确表征、形成热/动力学、影响因素、强韧化机理以及应用举例等多个方面进行了简要总结,并对未来可能的重点研究内容进行了展望。 | 刘刚 张鹏 杨冲 张金钰 孙军 | 2021 | 金属学报2021，57，11： | 4 |
| 4 | 计算扩散动力学在稀有金属材料研究和设计中的应用显示文摘计算扩散动力学(computational diffusion kinetics,CDK)因采用与计算热力学(computational thermodynamics,CT)或称为CALPHAD(CALculation of PHAse Diagram)技术相同的Redlich-Kister外推数学模型并与其高度集成,从而可以准确提供多元合金的扩散动力学信息,因此在合金材料的成分设计和微观组织控制中起着日益重要的作用.本文综述了计算扩散动力学在以钛及锆合金为代表的稀有金属材料研究中的最新进展,阐述了计算扩散动力学与计算热力学、定量相场(phase field)模拟以及三维统计计算(3D statistical calculation)结合用于设计(α+β)钛6-4合金热处理工艺的研究. | CUI YuWen XU GuangLong CHEN Yi 唐斌 李金山 周廉 | 2013 | 科学通报2013，58，35： | 2 |
| 5 | Investigation on structure and dynamic property of liquid Pd-Cu-Ni-P alloys using ab initio molecular dynamics simulation显示文摘Based on the short-range order,it is found that the abundance of the P-centered P-transition-metal clusters are the common feature among the liquid Pd-Cu-Ni-P alloys,and hence this feature alone could not uncover the underlying mechanisms of the variation of glass forming ability among the liquid alloys.For the so called similar elements such as Cu and Ni,their behaviors are significantly different when interacting with Pd or P atoms.Cu has weak bonding with both Pd and P while Ni has very strong bonding with P but nearly no bonding with Pd.The different bonding characters thus underlie the phenomenon that in the best glass formers the ratio of the two similar elements often deviates from 1:1.Only if the parameters of chemical short-range order of Cu and Ni around P become closest to each other the best glass forming ability is reached.It is also illustrated that the calculated dynamic properties are very helpful to locate the composition of the best glass former. | QIN JingYu GU TingKun PAN ShaoPeng BIAN XiuFang ZHANG Tao | 2013 | Science China(Technological Sciences)2013，56，2： | 0 |
| 6 | Mg/ZrB_2界面稳定性和电子结构第一性原理研究(英文)显示文摘本文采用平面波密度泛函理论研究了Mg(001)/ZrB2(001)界面的分离功、界面能和电子结构.首先通过界面结构优化可知,B终端的顶位界面结构几乎不发生改变;而B终端的桥位界面结构转变为B终端的中心位界面结构.另外,Zr终端的顶位界面结构和Zr终端的桥位结构都转变为Zr终端的中心位界面结构,新形成的B终端中心界面结构中的Mg–B键的长度、界面距离、分离功与初始的B终端中心界面结构几乎相同.B终端中心位界面结构有最大的分离功,同时有最小的界面距离,因此B终端中心位界面结构是最稳定的界面结构.次界面位置的分离功表明Mg(001)/Zr B2(001)界面增强了Mg端的结合强度,削弱了Zr B2端的结合强度.B终端中心位的界面结构和Zr终端中心界面可以自发形成是由于它们在富B和在贫B环境中分别有负的界面能.在B终端中心位和顶位界面结构中,界面处有共价键和离子键形成,而且B终端中心位界面结构的共价键方向性更强.结果表明,Zr B2颗粒可以用来增强Mg合金. | 李孝 惠群 邵栋元 陈晶晶 王培达 贾镇源 李春梅 陈志谦 程南璞 | 2016 | Science China Materials2016，59，1： | 0 |
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